Box



Augfzs 1942- R. cARNwATH l 2,294,279

BOX

Filed yMarch 50, .1940

Elije/Livr.- n

Patente-tl Aug. 25, 1942 BOX Robert Carnwath, Rydal, Pa., assignor toPennsylvania Box and Lumber Co., Philadelphia, Pa., a corporation ofPennsylvania Application March 30, 1940, Serial No. 326,335

4 Claims.

My invention relates to boxes, and more particularly to boxes of thetype used for packing and shipping, the walls whereof are constructed ofthin veneer boards, ply wood, or fiber sheets, having marginal framessecured-thereto, and also having metallic reinforcing stripsincorporated therein.

Various forms of boxes of the character aforesaid are in common use,none of which however are entirely satisfactory. Customarily themetallic reinforcing strips used extend through recesses cut in the sideframe members, and the ends of said strips are bent around in variousways to secure them to the panel members. The metallic reinforcingstrips used are usually relatively thick Which introduces diiculties inthe securing of the same to the other members of the several walls ofthe box, and does not assist in preventing inward deflection of thepanel portions of said walls. The recessing of the marginal reinforcingmembers not only involves additional labor in the construction of thelbox but also sets up weaknesses at points Where the utmost strength isrequired.

The principal object of the present invention is to provide a packing orshipping box, -of the character aforesaid, which will be simple andinexpensive in construction yet will be more durable than the boxes ofthis type at present in common use.

A further object of the invention is to provide a box, of the characteraforesaid, in which the metallic reinforcing members are firmly andfixedly secured with`respect to the-other members and are soconstructed, arranged and disposed as to afford the utmostreinforcement'at the required places.

The nature and lcharacteristic features of the invention will be morereadily understood from the following description, taken in connectionwith the accompanying drawing forming part hereof, in which:

Figure 1 is a perspective view of a box embodying the main features ofthe present invention, portions thereof being broken away, better toillustrate the structure;

Fig. 2 is a transverse sectional detail View illustrating how one of theedge portions of the top wall unit is united to one of the side wallunits of the box; and

Fig. 3 is a sectional detail view, taken on the line 3 3 of Fig. 2. l

It should of course be understood that the description and drawingherein are illustrative merely, and that various changes and modificafll) tions may be made in the structure disclosed Without departing fromthe spirit of the invention.

Referring to the drawing, in the particular embodiment of the inventiontherein shown, the box comprises a top unit A, a bottom unit B, sideunits C, and end units D. Initially each of the wall units comprisingthe top, bottom, and sides of the box is a separate structure, the bodyportion 5 of which is made of veneer board, ply wood, ber or the like,strengthened by means of a marginal frame made of wooden strips 6running longitudinally at the side edges, and transverse strips 'l atthe end edges.

Intermediate the end members l' of the marginal frame transverse cleats8, also made of wooden strips, are employed, one of these being shown oneach of said Walls but it should of course be understood that where thebox is of greater length than is shown in the drawing, a plurality ofsuch intermediate cleats, suitably located, may be employed.

Metallic reinforcing strips 9, made of relatively thin metal, areinterposed between the transverse cleats 8 and the main panel portion ofthe box wall at each place where said cleats 8 are positioned. Thesemetal reinforcing strips 9 may be made of any suitable material, forexample, that which is commonly known as tin plate, has been found quitesuitable. The Strips S are of a Width slightly less than the width ofthe rcleats V8 beneath which said strips t are located, and these metalreinforcing strips 9 are also of a suflicient length to extend from sideto side of the main panel members 5 extending under the side members 6of the marginal frames.

The end units D are constructed in substantially the same manner as thetop A and bottom B and side units C of the box, with the exception thatordinarily no intermediate cleats 8 Will be required in these units.

The marginal frame members S are secured to each other, and to the panelmember 5, by means of staples I!) preferably driven through from theoutside face. Likewise, the ends of the intermediate cleats 8 aresecured to the side members 6 of the marginal frame and to the panelmember 5 by means of similar staples lil. It should be noted that thestaples li! which thus secure the end portions of the cleats 8 to theside members 6 of the frame also extend through the metallic reinforcingstrips 9 which are disposed beneath the cleats 8.

The panel portion 5 of each of the wall units of the box is also securedto the frame members,

and to the intermediate cleat, by nails Il driven from the inner facethrough said members, said nails Il being clinched over on the outerfaces of the wooden strips 6 comprising the frame members and the cleats8. The head portions of the nails are thus disposed to secure the panelportions to the frames in the most efficient manner.

It will be noted that the nails l I which are used to secure the panelportion 5 of each of the wall units, where the intermediate cleats 8 areemployed, also extend through said metallic reinforcing strips 9,whereby the utmost degree of reinforcement is obtained notwithstandingthe thinness of the material used for such metallic reinforcing strips9.

After the several wall units of the box are made as above described, thesame are brought together and assembled in proper relationship to makethe box, the same being nailed to each other by suitable nails l2passing through the frame members of one wall portion to the framemembers of the adjacent wall portions. It Will here be noted that nailsI2 are preferably employed at the place where the metallic reinforcingstrips 9 are disposed in the particular walls, which serve as anadditional means for securing said reinforcement strips thereby toobtain the utmost efficiency in the use thereof.

The use of the relatively thin metallic reinforcing strips 9 permits thevarious staples and nails used in the making of the box to be driventherethrough without any preliminary perforation of said strips, therebygreatly reducing the cost of manufacture of the box. Also, by reason ofthe thinness of the metallic reinforcing strips used, it is notnecessary to recess the marginal frame members where said strips passbetween the same and the panel member.

It will also be noted that in the present arrangement, the panelmembers, the metallic reinforcing strips, and the transverse cleats, areyall secured to each other in such manner that the panel members will besecurely held against inward deflection.

I claim:

1. A box made of a plurality of wall units each comprising a panelmember of thin material, marginal frame members extending around theedges of said panel member, an intermediate cleat extending from one ofthe side marginal frame members to the other, a relatively thin and widesheet metal reinforcing strip of high tensile strength disposed betweensaid cleat and the panel member, said strip being of awidthapproximately that of the intermediate cleat and having its end portionsextending between the side marginal frame members and the panel member,and fastening devices extending through said members to secure them toeach other, certain of said fastening devices passing through thereinforcing strip.

2. A box made of a plurality of wall units each comprising a panelmember of thin material, marginal frame members extending around theedges of said panel member, an intermediate cleat extending from one ofthe side marginal frame members to the other, a relatively thinreinforcing strip of high tensile strength and of a width slightly lessthan that of the intermediate cleat disposed between said cleat and thepanel member, said strip being nail penetrable and having its endportions extending between the side marginal frame members and the panelmember, nails driven from the inside face extending through the panelmember and frame members and cleat, certain of said nails also passingthrough the reinforcing strip.

3. A box ma-de of a plurality of wall units each comprising a panelmember of thin material, marginal frame members extending around theedges of said panel member, an intermediate cleat extending from one ofthe side marginal frame members to the other, a relatively thin and widesheet metal reinforcing strip disposed between said cleat and the panelmember, said strip having its end portions extending between the sidemarginal frame members and the panel member, staples ydriven from theoutside faces across the joint between the ends of the cleats and theside marginal frame members, said staples passing through the metallicreinforcing strips and through the panel member, nails driven from theinside face extending through the panel member and frame members andcleat, certain of said nails also passing through the metallicreinforcing strip.

4. A box made of a plurality of wall units each comprising a panelmember of thin material, marginal frame members extending around theedges of said panel member, an intermediate cleat extending from one ofthe side marginal frame members to the other, a relatively thin and widesheet metal reinforcing strip disposed between said cleat and the panelmember, said strip being nail and staple penetrable and having its endportions extending between the side marginal frame members and the panelmember, staples driven from the outside faces across the joint betweenthe ends of the cleats and the side marginal frame members, said staplespassing through the metallic reinforcing strips and through the panelmember, nails driven from the inside face extending through the panelmember and frame members and cleat, certain of said nails also passingthrough the metallic reinforcing strips; and nails for securing the wallunits to each other, certain of said nails also passing through themetallic reinforcing strips.

ROBERT CARNWATH.

